refactor: Move log directory configuration to Application section

- Move LogDirectory from Logging section to Application section in appsettings.json
- Update Program.cs to read from Application:LogDirectory instead of Logging:LogDirectory
- Fix JSON schema validation warning for non-standard Logging properties
- Application section now holds custom application-specific settings
- Standard Logging and Serilog sections remain clean and schema-compliant

ECMJobRunner.WebCron/appsettings.json

@@ -3,8 +3,7 @@
     "LogLevel": {
       "Default": "Information",
       "Microsoft.AspNetCore": "Warning"
-    },
-    "LogDirectory": "E:\\LogFiles\\Digital Data\\ECMJobRunner.WebCron"
+    }
   },
   "ConnectionStrings": {
     "SDD-VMP04-SQL17": "Server=SDD-VMP04-SQL17\\DD_DEVELOP01;Database=DD_ECM;User Id=sa;Password=dd;Encrypt=false;TrustServerCertificate=True;"
@@ -18,5 +17,8 @@
   },
   "ReC": {
     "ApiUrl": "http://172.24.12.39:90"
+  },
+  "Application": {
+    "LogDirectory": "E:\\LogFiles\\Digital Data\\ECMJobRunner.WebCron"
   }
 }